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Diffstat (limited to 'sysdeps/i386/Makefile')
| -rw-r--r-- | sysdeps/i386/Makefile | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/sysdeps/i386/Makefile b/sysdeps/i386/Makefile index 717d8e7454..168512fc32 100644 --- a/sysdeps/i386/Makefile +++ b/sysdeps/i386/Makefile @@ -83,3 +83,17 @@ endif ifeq ($(subdir),csu) gen-as-const-headers += tlsdesc.sym endif + +ifeq ($(subdir),elf) +# Make sure no code in ld.so uses mm/xmm/ymm/zmm registers on i386 since +# the first 3 mm/xmm/ymm/zmm registers are used to pass vector parameters +# which must be preserved. +CFLAGS-.os += $(if $(filter $(@F),$(patsubst %,%.os,$(all-rtld-routines))),\ + -mno-sse -mno-mmx) + +tests-special += $(objpfx)tst-ld-sse-use.out +$(objpfx)tst-ld-sse-use.out: ../sysdeps/i386/tst-ld-sse-use.sh $(objpfx)ld.so + @echo "Checking ld.so for SSE register use. This will take a few seconds..." + $(BASH) $< $(objpfx) '$(NM)' '$(OBJDUMP)' '$(READELF)' > $@; \ + $(evaluate-test) +endif |